CVE-2024-21632

omniauth-microsoft_graph vulnerable to account takeover (nOAuth)

Published Jan 2, 2024 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0260 omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.
Github GHSA Github GHSA GHSA-5g66-628f-7cvj Omniauth::MicrosoftGraph Account takeover (nOAuth)
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 17, 2025, 8:29 PM
Reserved
Dec 29, 2023, 3:00 AM
Status
Modified
Published
Jan 2, 2024, 10:15 PM
Modified
Jun 17, 2026, 7:09 AM